Wong was born in British Hong Kong to Ngan Kan and Fat Wong. His future wife, Carol Lu, introduced him to the LDS Church and he became a member in 1982. In 1983, Wong married Lu and they moved to Oahu, where Wong attended Brigham Young University–Hawaii and obtained degrees in accounting and computer science.

The Wongs then returned to Hong Kong, where he founded a business and quality consulting company. He later received an MBA from the Open University of Hong Kong.

In the October 2014 general conference, Wong delivered a sermon in Cantonese, becoming the first speaker to give a general conference address in a language other than English. Prior to the conference, the LDS Church had announced a new policy of allowing conference speakers to give addresses in their native languages.[2][3][4][5]

The individuals listed below are current General Authority Seventies. Each is a member of either the First or Second Quorums of the Seventy. Those in italics are the current members of the Presidency of the Seventy.